Hubble Space Telescope Space Telescope Imaging Spectrograph imaging of the host galaxy of GRB 980425/SN 1998bw

被引：43

作者：

Fynbo, JU

Holland, S

Andersen, MI

Thomsen, B

Hjorth, J

Björnsson, G

Jaunsen, AO

Natarajan, P

Tanvir, N

机构：

[1] Univ Copenhagen, Astron Observ, DK-2100 Copenhagen O, Denmark

[2] Aarhus Univ, Inst Phys & Astron, DK-8000 Aarhus, Denmark

[3] Oulu Univ, Div Astron, FIN-90014 Oulu, Finland

[4] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland

[5] Univ Oslo, Inst Theoret Astrophys, N-0315 Oslo, Norway

[6] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England

[7] Yale Univ, Dept Astron, New Haven, CT 06520 USA

[8] Univ Hertfordshire, Dept Phys Sci, Hatfield AL10 9AB, Herts, England

来源：

ASTROPHYSICAL JOURNAL | 2000年 / 542卷 / 02期

关键词：

astrometry; galaxies : individual (ESO 84-G182); gamma rays : bursts; supernovae : individual (SN 1998bw);

D O I：

10.1086/312942

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present Hubble Space Telescope Space Telescope Imaging Spectrograph observations of ESO 184-G82, the host galaxy of the gamma-ray burst GRB 980425 associated with the peculiar Type Ic supernova SN 1998bw. ESO 184-G82 is found to be an actively star-forming SBc subluminous galaxy. We detect an object consistent with being a point source within the astrometric uncertainty of 0."018 of the position of the supernova. The object is located inside a star-forming region. The object is greater than or equal to1 mag brighter than expected for the supernova based on a simple radioactive decay model. This implies either a significant flattening of the light curve or a contribution from an underlying star cluster.

引用

页码：L89 / L93

页数：5

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